This
is the only episode where Matt kisses a woman on the lips - and it isn't
Kitty! It's a lady named Mike - played by Michael Learned. Matt, of course,
was suffering from memory loss. (Click on Mike for more information.)

Note:
Seventeen years later in the 1990 made-for-television movie Gunsmoke:
The Last Apache, Matt meets Mike again and, for the first time,
Dillon learns he has a daughter, Beth.